Home / 12,558.18-17,328.98-7,254.71

Finding the Fourth Proportional to 12,558.18, 17,328.98 and 7,254.71

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Solution

The fourth proportional to 12,558.18, 17,328.98 and 7,254.71 is: 10,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.18 : 17,328.98 = 7,254.71 : x
  2. Step 2: Convert to fraction form
    12,558.18/17,328.98 = 7,254.71/x
  3. Step 3: Cross multiply
    12,558.18x = 17,328.98 × 7,254.71
  4. Step 4: Simplify right side
    12,558.18x = 125,716,655.99
  5. Step 5: Solve for x
    x = 125,716,655.99/12,558.18
  6. Step 6: Final answer
    x = 10,010.74

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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.