Home / 15,485.60-23,228.40-12,569.60

Finding the Fourth Proportional to 15,485.60, 23,228.40 and 12,569.60

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Solution

The fourth proportional to 15,485.60, 23,228.40 and 12,569.60 is: 18,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485.60 : 23,228.40 = 12,569.60 : x
  2. Step 2: Convert to fraction form
    15,485.60/23,228.40 = 12,569.60/x
  3. Step 3: Cross multiply
    15,485.60x = 23,228.40 × 12,569.60
  4. Step 4: Simplify right side
    15,485.60x = 291,971,696.64
  5. Step 5: Solve for x
    x = 291,971,696.64/15,485.60
  6. Step 6: Final answer
    x = 18,854.40

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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.