Home / 8,862.63-12,231.45-5,278.53

Finding the Fourth Proportional to 8,862.63, 12,231.45 and 5,278.53

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Solution

The fourth proportional to 8,862.63, 12,231.45 and 5,278.53 is: 7,284.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.63 : 12,231.45 = 5,278.53 : x
  2. Step 2: Convert to fraction form
    8,862.63/12,231.45 = 5,278.53/x
  3. Step 3: Cross multiply
    8,862.63x = 12,231.45 × 5,278.53
  4. Step 4: Simplify right side
    8,862.63x = 64,564,075.77
  5. Step 5: Solve for x
    x = 64,564,075.77/8,862.63
  6. Step 6: Final answer
    x = 7,284.98

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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.