Home / 10,935.40-15,089.70-6,218.92

Finding the Fourth Proportional to 10,935.40, 15,089.70 and 6,218.92

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Solution

The fourth proportional to 10,935.40, 15,089.70 and 6,218.92 is: 8,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.40 : 15,089.70 = 6,218.92 : x
  2. Step 2: Convert to fraction form
    10,935.40/15,089.70 = 6,218.92/x
  3. Step 3: Cross multiply
    10,935.40x = 15,089.70 × 6,218.92
  4. Step 4: Simplify right side
    10,935.40x = 93,841,637.12
  5. Step 5: Solve for x
    x = 93,841,637.12/10,935.40
  6. Step 6: Final answer
    x = 8,581.45

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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.