Home / 10,438.02-14,396.10-9,176.40

Finding the Fourth Proportional to 10,438.02, 14,396.10 and 9,176.40

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Solution

The fourth proportional to 10,438.02, 14,396.10 and 9,176.40 is: 12,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.02 : 14,396.10 = 9,176.40 : x
  2. Step 2: Convert to fraction form
    10,438.02/14,396.10 = 9,176.40/x
  3. Step 3: Cross multiply
    10,438.02x = 14,396.10 × 9,176.40
  4. Step 4: Simplify right side
    10,438.02x = 132,104,372.04
  5. Step 5: Solve for x
    x = 132,104,372.04/10,438.02
  6. Step 6: Final answer
    x = 12,656.08

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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.