Home / 10,655.55-15,970.56-7,530.87

Finding the Fourth Proportional to 10,655.55, 15,970.56 and 7,530.87

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Solution

The fourth proportional to 10,655.55, 15,970.56 and 7,530.87 is: 11,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.55 : 15,970.56 = 7,530.87 : x
  2. Step 2: Convert to fraction form
    10,655.55/15,970.56 = 7,530.87/x
  3. Step 3: Cross multiply
    10,655.55x = 15,970.56 × 7,530.87
  4. Step 4: Simplify right side
    10,655.55x = 120,272,211.19
  5. Step 5: Solve for x
    x = 120,272,211.19/10,655.55
  6. Step 6: Final answer
    x = 11,287.28

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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.