Home / 12,953.75-19,430.63-8,570.18

Finding the Fourth Proportional to 12,953.75, 19,430.63 and 8,570.18

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Solution

The fourth proportional to 12,953.75, 19,430.63 and 8,570.18 is: 12,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.75 : 19,430.63 = 8,570.18 : x
  2. Step 2: Convert to fraction form
    12,953.75/19,430.63 = 8,570.18/x
  3. Step 3: Cross multiply
    12,953.75x = 19,430.63 × 8,570.18
  4. Step 4: Simplify right side
    12,953.75x = 166,523,856.61
  5. Step 5: Solve for x
    x = 166,523,856.61/12,953.75
  6. Step 6: Final answer
    x = 12,855.27

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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.