Home / 10,987.65-16,475.40-4,746.60

Finding the Fourth Proportional to 10,987.65, 16,475.40 and 4,746.60

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Solution

The fourth proportional to 10,987.65, 16,475.40 and 4,746.60 is: 7,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.65 : 16,475.40 = 4,746.60 : x
  2. Step 2: Convert to fraction form
    10,987.65/16,475.40 = 4,746.60/x
  3. Step 3: Cross multiply
    10,987.65x = 16,475.40 × 4,746.60
  4. Step 4: Simplify right side
    10,987.65x = 78,202,133.64
  5. Step 5: Solve for x
    x = 78,202,133.64/10,987.65
  6. Step 6: Final answer
    x = 7,117.28

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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.