Home / 12,687,803.57-17,508,699.86-6,886,461.67

Finding the Fourth Proportional to 12,687,803.57, 17,508,699.86 and 6,886,461.67

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Solution

The fourth proportional to 12,687,803.57, 17,508,699.86 and 6,886,461.67 is: 9,503,062.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,803.57 : 17,508,699.86 = 6,886,461.67 : x
  2. Step 2: Convert to fraction form
    12,687,803.57/17,508,699.86 = 6,886,461.67/x
  3. Step 3: Cross multiply
    12,687,803.57x = 17,508,699.86 × 6,886,461.67
  4. Step 4: Simplify right side
    12,687,803.57x = 120,572,990,399,220.31
  5. Step 5: Solve for x
    x = 120,572,990,399,220.31/12,687,803.57
  6. Step 6: Final answer
    x = 9,503,062.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.