Home / 15,690.60-23,528.34-9,118.68

Finding the Fourth Proportional to 15,690.60, 23,528.34 and 9,118.68

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Solution

The fourth proportional to 15,690.60, 23,528.34 and 9,118.68 is: 13,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.60 : 23,528.34 = 9,118.68 : x
  2. Step 2: Convert to fraction form
    15,690.60/23,528.34 = 9,118.68/x
  3. Step 3: Cross multiply
    15,690.60x = 23,528.34 × 9,118.68
  4. Step 4: Simplify right side
    15,690.60x = 214,547,403.39
  5. Step 5: Solve for x
    x = 214,547,403.39/15,690.60
  6. Step 6: Final answer
    x = 13,673.63

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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.