Home / 14,547.30-21,815.55-5,780.40

Finding the Fourth Proportional to 14,547.30, 21,815.55 and 5,780.40

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Solution

The fourth proportional to 14,547.30, 21,815.55 and 5,780.40 is: 8,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,547.30 : 21,815.55 = 5,780.40 : x
  2. Step 2: Convert to fraction form
    14,547.30/21,815.55 = 5,780.40/x
  3. Step 3: Cross multiply
    14,547.30x = 21,815.55 × 5,780.40
  4. Step 4: Simplify right side
    14,547.30x = 126,102,605.22
  5. Step 5: Solve for x
    x = 126,102,605.22/14,547.30
  6. Step 6: Final answer
    x = 8,668.45

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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.