Home / 15,315.04-21,140.08-9,027

Finding the Fourth Proportional to 15,315.04, 21,140.08 and 9,027

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Solution

The fourth proportional to 15,315.04, 21,140.08 and 9,027 is: 12,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.04 : 21,140.08 = 9,027 : x
  2. Step 2: Convert to fraction form
    15,315.04/21,140.08 = 9,027/x
  3. Step 3: Cross multiply
    15,315.04x = 21,140.08 × 9,027
  4. Step 4: Simplify right side
    15,315.04x = 190,831,502.16
  5. Step 5: Solve for x
    x = 190,831,502.16/15,315.04
  6. Step 6: Final answer
    x = 12,460.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.