Home / 12,852.48-19,281.80-4,087.40

Finding the Fourth Proportional to 12,852.48, 19,281.80 and 4,087.40

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Solution

The fourth proportional to 12,852.48, 19,281.80 and 4,087.40 is: 6,132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.48 : 19,281.80 = 4,087.40 : x
  2. Step 2: Convert to fraction form
    12,852.48/19,281.80 = 4,087.40/x
  3. Step 3: Cross multiply
    12,852.48x = 19,281.80 × 4,087.40
  4. Step 4: Simplify right side
    12,852.48x = 78,812,429.32
  5. Step 5: Solve for x
    x = 78,812,429.32/12,852.48
  6. Step 6: Final answer
    x = 6,132.08

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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.