Home / 7,001.28-10,501.11-1,807.56

Finding the Fourth Proportional to 7,001.28, 10,501.11 and 1,807.56

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Solution

The fourth proportional to 7,001.28, 10,501.11 and 1,807.56 is: 2,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.28 : 10,501.11 = 1,807.56 : x
  2. Step 2: Convert to fraction form
    7,001.28/10,501.11 = 1,807.56/x
  3. Step 3: Cross multiply
    7,001.28x = 10,501.11 × 1,807.56
  4. Step 4: Simplify right side
    7,001.28x = 18,981,386.39
  5. Step 5: Solve for x
    x = 18,981,386.39/7,001.28
  6. Step 6: Final answer
    x = 2,711.13

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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.