Home / 10,607.21-15,887.40-6,645.56

Finding the Fourth Proportional to 10,607.21, 15,887.40 and 6,645.56

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Solution

The fourth proportional to 10,607.21, 15,887.40 and 6,645.56 is: 9,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.21 : 15,887.40 = 6,645.56 : x
  2. Step 2: Convert to fraction form
    10,607.21/15,887.40 = 6,645.56/x
  3. Step 3: Cross multiply
    10,607.21x = 15,887.40 × 6,645.56
  4. Step 4: Simplify right side
    10,607.21x = 105,580,590.51
  5. Step 5: Solve for x
    x = 105,580,590.51/10,607.21
  6. Step 6: Final answer
    x = 9,953.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.