Home / 10,931.56-16,397.34-7,030.60

Finding the Fourth Proportional to 10,931.56, 16,397.34 and 7,030.60

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Solution

The fourth proportional to 10,931.56, 16,397.34 and 7,030.60 is: 10,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.56 : 16,397.34 = 7,030.60 : x
  2. Step 2: Convert to fraction form
    10,931.56/16,397.34 = 7,030.60/x
  3. Step 3: Cross multiply
    10,931.56x = 16,397.34 × 7,030.60
  4. Step 4: Simplify right side
    10,931.56x = 115,283,138.60
  5. Step 5: Solve for x
    x = 115,283,138.60/10,931.56
  6. Step 6: Final answer
    x = 10,545.90

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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.