Home / 10,877.95-15,011.55-6,629.00

Finding the Fourth Proportional to 10,877.95, 15,011.55 and 6,629.00

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Solution

The fourth proportional to 10,877.95, 15,011.55 and 6,629.00 is: 9,148.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.95 : 15,011.55 = 6,629.00 : x
  2. Step 2: Convert to fraction form
    10,877.95/15,011.55 = 6,629.00/x
  3. Step 3: Cross multiply
    10,877.95x = 15,011.55 × 6,629.00
  4. Step 4: Simplify right side
    10,877.95x = 99,511,602.48
  5. Step 5: Solve for x
    x = 99,511,602.48/10,877.95
  6. Step 6: Final answer
    x = 9,148.01

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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.