Home / 10,391.19-14,330.26-7,038.91

Finding the Fourth Proportional to 10,391.19, 14,330.26 and 7,038.91

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Solution

The fourth proportional to 10,391.19, 14,330.26 and 7,038.91 is: 9,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.19 : 14,330.26 = 7,038.91 : x
  2. Step 2: Convert to fraction form
    10,391.19/14,330.26 = 7,038.91/x
  3. Step 3: Cross multiply
    10,391.19x = 14,330.26 × 7,038.91
  4. Step 4: Simplify right side
    10,391.19x = 100,869,410.42
  5. Step 5: Solve for x
    x = 100,869,410.42/10,391.19
  6. Step 6: Final answer
    x = 9,707.20

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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.