Home / 19,007.88-28,503.57-7,312.89

Finding the Fourth Proportional to 19,007.88, 28,503.57 and 7,312.89

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Solution

The fourth proportional to 19,007.88, 28,503.57 and 7,312.89 is: 10,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.88 : 28,503.57 = 7,312.89 : x
  2. Step 2: Convert to fraction form
    19,007.88/28,503.57 = 7,312.89/x
  3. Step 3: Cross multiply
    19,007.88x = 28,503.57 × 7,312.89
  4. Step 4: Simplify right side
    19,007.88x = 208,443,472.02
  5. Step 5: Solve for x
    x = 208,443,472.02/19,007.88
  6. Step 6: Final answer
    x = 10,966.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.