Home / 8,666.48-11,959.75-4,890.45

Finding the Fourth Proportional to 8,666.48, 11,959.75 and 4,890.45

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Solution

The fourth proportional to 8,666.48, 11,959.75 and 4,890.45 is: 6,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.48 : 11,959.75 = 4,890.45 : x
  2. Step 2: Convert to fraction form
    8,666.48/11,959.75 = 4,890.45/x
  3. Step 3: Cross multiply
    8,666.48x = 11,959.75 × 4,890.45
  4. Step 4: Simplify right side
    8,666.48x = 58,488,547.16
  5. Step 5: Solve for x
    x = 58,488,547.16/8,666.48
  6. Step 6: Final answer
    x = 6,748.82

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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.