Home / 19,155.48-28,742.63-8,632.77

Finding the Fourth Proportional to 19,155.48, 28,742.63 and 8,632.77

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Solution

The fourth proportional to 19,155.48, 28,742.63 and 8,632.77 is: 12,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.48 : 28,742.63 = 8,632.77 : x
  2. Step 2: Convert to fraction form
    19,155.48/28,742.63 = 8,632.77/x
  3. Step 3: Cross multiply
    19,155.48x = 28,742.63 × 8,632.77
  4. Step 4: Simplify right side
    19,155.48x = 248,128,513.99
  5. Step 5: Solve for x
    x = 248,128,513.99/19,155.48
  6. Step 6: Final answer
    x = 12,953.40

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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.