Home / 15,986.72-23,980.07-8,875.32

Finding the Fourth Proportional to 15,986.72, 23,980.07 and 8,875.32

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Solution

The fourth proportional to 15,986.72, 23,980.07 and 8,875.32 is: 13,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.72 : 23,980.07 = 8,875.32 : x
  2. Step 2: Convert to fraction form
    15,986.72/23,980.07 = 8,875.32/x
  3. Step 3: Cross multiply
    15,986.72x = 23,980.07 × 8,875.32
  4. Step 4: Simplify right side
    15,986.72x = 212,830,630.60
  5. Step 5: Solve for x
    x = 212,830,630.60/15,986.72
  6. Step 6: Final answer
    x = 13,312.96

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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.