Home / 13,030.47-17,988.25-8,730.97

Finding the Fourth Proportional to 13,030.47, 17,988.25 and 8,730.97

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Solution

The fourth proportional to 13,030.47, 17,988.25 and 8,730.97 is: 12,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.47 : 17,988.25 = 8,730.97 : x
  2. Step 2: Convert to fraction form
    13,030.47/17,988.25 = 8,730.97/x
  3. Step 3: Cross multiply
    13,030.47x = 17,988.25 × 8,730.97
  4. Step 4: Simplify right side
    13,030.47x = 157,054,737.51
  5. Step 5: Solve for x
    x = 157,054,737.51/13,030.47
  6. Step 6: Final answer
    x = 12,052.89

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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.