Home / 13,547.12-20,323.50-4,788.32

Finding the Fourth Proportional to 13,547.12, 20,323.50 and 4,788.32

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Solution

The fourth proportional to 13,547.12, 20,323.50 and 4,788.32 is: 7,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.12 : 20,323.50 = 4,788.32 : x
  2. Step 2: Convert to fraction form
    13,547.12/20,323.50 = 4,788.32/x
  3. Step 3: Cross multiply
    13,547.12x = 20,323.50 × 4,788.32
  4. Step 4: Simplify right side
    13,547.12x = 97,315,421.52
  5. Step 5: Solve for x
    x = 97,315,421.52/13,547.12
  6. Step 6: Final answer
    x = 7,183.48

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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.