Home / 13,750.04-18,971.88-9,282.08

Finding the Fourth Proportional to 13,750.04, 18,971.88 and 9,282.08

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Solution

The fourth proportional to 13,750.04, 18,971.88 and 9,282.08 is: 12,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.04 : 18,971.88 = 9,282.08 : x
  2. Step 2: Convert to fraction form
    13,750.04/18,971.88 = 9,282.08/x
  3. Step 3: Cross multiply
    13,750.04x = 18,971.88 × 9,282.08
  4. Step 4: Simplify right side
    13,750.04x = 176,098,507.91
  5. Step 5: Solve for x
    x = 176,098,507.91/13,750.04
  6. Step 6: Final answer
    x = 12,807.13

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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.