Home / 13,869.79-19,148.85-9,029.16

Finding the Fourth Proportional to 13,869.79, 19,148.85 and 9,029.16

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Solution

The fourth proportional to 13,869.79, 19,148.85 and 9,029.16 is: 12,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.79 : 19,148.85 = 9,029.16 : x
  2. Step 2: Convert to fraction form
    13,869.79/19,148.85 = 9,029.16/x
  3. Step 3: Cross multiply
    13,869.79x = 19,148.85 × 9,029.16
  4. Step 4: Simplify right side
    13,869.79x = 172,898,030.47
  5. Step 5: Solve for x
    x = 172,898,030.47/13,869.79
  6. Step 6: Final answer
    x = 12,465.80

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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.