Home / 10,490.40-14,485.50-9,369.36

Finding the Fourth Proportional to 10,490.40, 14,485.50 and 9,369.36

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Solution

The fourth proportional to 10,490.40, 14,485.50 and 9,369.36 is: 12,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.40 : 14,485.50 = 9,369.36 : x
  2. Step 2: Convert to fraction form
    10,490.40/14,485.50 = 9,369.36/x
  3. Step 3: Cross multiply
    10,490.40x = 14,485.50 × 9,369.36
  4. Step 4: Simplify right side
    10,490.40x = 135,719,864.28
  5. Step 5: Solve for x
    x = 135,719,864.28/10,490.40
  6. Step 6: Final answer
    x = 12,937.53

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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.