Home / 12,688.48-19,055.40-11,055.52

Finding the Fourth Proportional to 12,688.48, 19,055.40 and 11,055.52

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Solution

The fourth proportional to 12,688.48, 19,055.40 and 11,055.52 is: 16,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.48 : 19,055.40 = 11,055.52 : x
  2. Step 2: Convert to fraction form
    12,688.48/19,055.40 = 11,055.52/x
  3. Step 3: Cross multiply
    12,688.48x = 19,055.40 × 11,055.52
  4. Step 4: Simplify right side
    12,688.48x = 210,667,355.81
  5. Step 5: Solve for x
    x = 210,667,355.81/12,688.48
  6. Step 6: Final answer
    x = 16,603.04

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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.