Home / 10,043.40-15,065.10-9,870.60

Finding the Fourth Proportional to 10,043.40, 15,065.10 and 9,870.60

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Solution

The fourth proportional to 10,043.40, 15,065.10 and 9,870.60 is: 14,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,043.40 : 15,065.10 = 9,870.60 : x
  2. Step 2: Convert to fraction form
    10,043.40/15,065.10 = 9,870.60/x
  3. Step 3: Cross multiply
    10,043.40x = 15,065.10 × 9,870.60
  4. Step 4: Simplify right side
    10,043.40x = 148,701,576.06
  5. Step 5: Solve for x
    x = 148,701,576.06/10,043.40
  6. Step 6: Final answer
    x = 14,805.90

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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.