Home / 10,345.19-15,438.29-9,237.96

Finding the Fourth Proportional to 10,345.19, 15,438.29 and 9,237.96

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Solution

The fourth proportional to 10,345.19, 15,438.29 and 9,237.96 is: 13,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.19 : 15,438.29 = 9,237.96 : x
  2. Step 2: Convert to fraction form
    10,345.19/15,438.29 = 9,237.96/x
  3. Step 3: Cross multiply
    10,345.19x = 15,438.29 × 9,237.96
  4. Step 4: Simplify right side
    10,345.19x = 142,618,259.30
  5. Step 5: Solve for x
    x = 142,618,259.30/10,345.19
  6. Step 6: Final answer
    x = 13,785.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.