Home / 15,315.40-22,973.10-4,928.20

Finding the Fourth Proportional to 15,315.40, 22,973.10 and 4,928.20

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Solution

The fourth proportional to 15,315.40, 22,973.10 and 4,928.20 is: 7,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.40 : 22,973.10 = 4,928.20 : x
  2. Step 2: Convert to fraction form
    15,315.40/22,973.10 = 4,928.20/x
  3. Step 3: Cross multiply
    15,315.40x = 22,973.10 × 4,928.20
  4. Step 4: Simplify right side
    15,315.40x = 113,216,031.42
  5. Step 5: Solve for x
    x = 113,216,031.42/15,315.40
  6. Step 6: Final answer
    x = 7,392.30

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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.